Vehicle grille unit



FIG. 1 is front perspective view of a vehicle grille unit showing the new design;

FIG. 2 is a front view, thereof;

FIG. 3 is a side view, thereof; and,

FIG. 4 is a top plan view, thereof.

In the figures, features shown by broken lines are for illustrative purposes only and form no part of the claimed design. 

CLAIM The ornamental design for a vehicle grille unit, as shown and described. 